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A Study of Smoke Exhaust Rate for the Transverse Ventilation with Oversized Exhaust Ports in Road Tunnel  

Yoo, Ji-Oh (Department of Building Mechanical Engineering, Shinheung college)
Yoon, Sung-Wook (GS Engineering & Construction)
Rie, Dong-Ho (Department of Safety Engineering, University of Incheon)
Publication Information
Journal of the Korean Society of Safety / v.21, no.4, 2006 , pp. 7-12 More about this Journal
Abstract
Recently, the application of transverse ventilation system with oversized exhaust ports has been increased in bidirectional road tunnel in order to improve smoke exhaust ability. Therefore, in this study, for decision of the optimal smoke exhaust rates in the transverse ventilation system, several standards of nations are compared and numerical simulations with variations of exhaust flow rates are carried out in terms of smoke spread distance by FDS ver. 3.1. As results, in the case of no internal longitudinal air velocity in tunnel, the smoke exhaust rate of $80m^{3}/s$ (the smoke generation rate at HRR of 20MW) is sufficient enough to limit the smoke spread within 250m in 6 minutes after the fire. However, in the case of the internal longitudinal air velocity at 2.5m/s, the smoke exhaust rate should be increased $130m^{3}/s$.
Keywords
tunnel fire; transverse smoke exhaust system; single point exhaust; oversized exhaust ports;
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  • Reference
1 Sergiu, F., 'Task force for technical investigation of the 24 March 1999 Fire in the Mont Blanc vehicular tunnel - Status Report of April 13, 1999', 28-2000
2 B. Bettelini, A. Henke, 'Upgrading the Ventilation of the Gotthard road tunnel', 11th Int. Sym. on the Aero. and Ventilation of Vehicle Tunnels, pp. 29-45, BHRGroup, 2003
3 NFPA, NFPA 502 standard for road tunnel, Bridges and other limited access highways, Quincy, Massachusetts, 1998 Edition, 1998
4 FHA, Memorial Tunnel : Fire Ventilation Test Program, CD-ROM and Comprehensive Test Report, Messachusetts Highway Dept. 1996
5 건설교통부, 도로터널 방재시설 설치지침,2004
6 O. Vauquelin and D. Telle, 'Smoke control in tunnel fires - should we talk about critical velocity or critical mass flow rate?', 10th Int. Sym. on the Aero. & Vent. of Veh. Tunnels, pp. 97 -103, 2000
7 이동호등, '반횡류식 환기설비를 활용한 화재시 터널 방재연구',2005년 한국화재소방학회 춘계 학술논문발표 논문집, pp. 131-137, 2005
8 지하공간 환경개선 및 방재기술 연구단, 2.18 대구지하철 화재 조사연구 백서, 경북대학교 도시환경설비 연구실
9 RABT, 'Richtlinien fur die Ausstattung und den Betrieb von StraBentunneln (RABT)', Germany, 2002
10 김명배, 최병일, 최준석, 한용식, '도로터널에서의 화재환기 설계에 관한 연구', 한국터널공학회 논문집, 제6권, 제2호, pp. 129-140
11 CETU, 'Circulaire Int. $\N^circ$ 2000-82 DU relative $\grave{a}$ la r$\acute{e}$glementation de la circulation des v$\acute{e}$hicules transportant des marchandises dangereuses dans les tunnels routiers du r$\acute{e}$seau national', 30 NOV. 2000, France